首頁   計劃介紹    

English Version

Plants of Taiwan

  • plantname
  • planetbook
  • 回目錄頁

    台灣植物誌 第二版  Flora of Taiwan, 2nd edition    Vol. 3

      / 1090
    last page

    上一頁

    台灣植物誌第二版  Flora of Taiwan, 2nd edition  3: 772

     87. THYMELAEACEAE 瑞香科
    CHANG, CHING-EN

    Shrubs or trees, rarely herbs, with tough fibrous inner bark. Leaves alternate or opposite, simple, quite entire. Flowers usually hermaphroditic, axillary or terminal, in heads, umbels, spikes or racemes. Perianth regular, tublar or campanulate, 4-5-lobed, imbricate in bud, often with 1-2 scales at the base. Stamens 2 or as many as or twice as many as the lobes; anthers 2-celled; style short or long, terminal or excentric, the stigma capitate; ovules solitary or one in each cell, pendulous, anatropous. Fruit generally indehiscent. Seed pendulous or lateral; endosperm fleshly or 0; embryo straight.
    Genera about 50 with about 500 species, chiefly developed in southern and tropical Africa and Australia; three in Taiwan.

    KEY TO GENERA
    1. Perianth not circumscissile in fruit
    2. Leaves usually alternate; disk ring-like or cup-shaped… 1. Daphne
    2. Leaves usually opposite; disk lobed, scale-like, lobes free or united in pairs… 3. Wikstroemia
    1. Perianth circumscissile after flowering… 2. Stellera

    1. DAPHNE L. 瑞香屬

    Shrubs or small trees. Leaves spirally arranged subopposite short petioled. Flowers in terminal or axillary clusters or racemes, sometimes subtended by braces; perianth tube corolla-like, cylindrical, the lobes 4 mm spreading; stamens 8, nearly sessile, inserted in 2 rows on the tube, mostly included; ovary 1-celled; style very short or 0, the stigma large, catitate. Fruit a fleshy or leathery drupe. Seed with crustaceous testa.
    About 70 species, in temperate and tropical regions of the Old World, 4 species in Taiwan.

    KEY TO SPECIES
    1. Flowers glabrous outside.
    2. Leaves lanceolate-oblaceolate with petioles 0.3-0.9 cm long, the lateral veins 4-7 pairs… 1. D. arisanensis
    2. Leaves narrowly linear, sessile, the lateral veins obscure… 4. D. morrisonensis
    1. Flowers pubescent outside.
    3. Leaves diciduous, pubescent beneath… 2. D. genkwa
    3. Leaves evergreen, glabrous… 3. D. kiusiana var. atrocaulis

    1. Daphne arisanensis Hayata, Icon. Pl. Form. 2: 126. 1912; Li in Fl. Taiwan 3: 746. pl. 799. 1977. 台灣瑞香
    Small undershrub, 2-3 m high; stem slender, grayish. Leaves alternate to subopposite, remote, chartaceous, lanceolate, to oblanceolate, 5-7 cm long, 1.5-2 cm broad, acuminate, acute to obtuse at apex, cuneate-attenuate at base, the lateral veins 4-7 on each side of the midrib; petioles 0.5-1 cm long. Flowers white or yellow, capitate at end of branches in 3 fascicles of 6-7 flowers each, bracteate; calyx-tube glabrous, cylindric, 4 mm long, 4-lobed, the lobes triangular-ovate, obtuse at apex; stamens 8 in 2 rows, the anthers linear, 1 mm long, the filaments glabrous. Fruit an ovoid drupe, 7 mm long, 4 mm across, apiculate, red.
    Endemic, in primary forests at high altitudes from 2,000-3,000 m.